ClinVar Miner

Submissions for variant NM_006939.4(SOS2):c.523A>C (p.Met175Leu)

dbSNP: rs1336823806
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001299539 SCV001488635 uncertain significance Noonan syndrome 9 2020-03-12 criteria provided, single submitter clinical testing Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This variant has not been reported in the literature in individuals with SOS2-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces methionine with leucine at codon 175 of the SOS2 protein (p.Met175Leu). The methionine residue is highly conserved and there is a small physicochemical difference between methionine and leucine.

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